Vulnerability Description
A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Binutils | 2.31.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
- http://www.securityfocus.com/bid/106440Third Party AdvisoryVDB Entry
- https://security.gentoo.org/glsa/201908-01
- https://sourceware.org/bugzilla/show_bug.cgi?id=24041ExploitIssue TrackingThird Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=54025d5812ff100f5f0
- https://support.f5.com/csp/article/K38336243Third Party Advisory
- https://usn.ubuntu.com/4336-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
- http://www.securityfocus.com/bid/106440Third Party AdvisoryVDB Entry
- https://security.gentoo.org/glsa/201908-01
- https://sourceware.org/bugzilla/show_bug.cgi?id=24041ExploitIssue TrackingThird Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=54025d5812ff100f5f0
- https://support.f5.com/csp/article/K38336243Third Party Advisory
FAQ
What is CVE-2018-20651?
CVE-2018-20651 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a...
How severe is CVE-2018-20651?
CVE-2018-20651 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-20651?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Binutils.